The NFL suspended Dallas Cowboys cornerback Adam Jones for at least four games Tuesday for violating the league’s personal-conduct policy. Commissioner Roger Goodell will determine the full length of the suspension after the Cowboys’ game in Washington on Nov. 16.

“If he earns his way to a point that he can be considered to play again, then I would support that,” Cowboys owner Jerry Jones said. “Frankly, just as he earned through his behavior the right to get back in and play a few weeks ago, he would have to earn that.”

The league said reinstatement will depend on strict compliance with treatment plans by the NFL and the Cowboys and an evaluation by “clinical experts.”

After repeated legal trouble while with the Tennessee Titans, Adam Jones was traded six months ago to Dallas, where he had stayed out of trouble until an alcohol-related scuffle Oct. 7 with one of his bodyguards at a private party.

In a letter to the cornerback Tuesday, Goodell cited a “disturbing pattern of behavior and clearly inconsistent with the conditions I set for your continued participation in the NFL.”

The disturbance at an upscale Dallas hotel came only six weeks after Goodell reinstated Jones from a 17-month suspension.

“It’s terribly disappointing to me that we’re dealing with this again and that he’s reflecting so poorly on all of the players in this league, which they don’t deserve,” Goodell said at the NFL owners meeting in St. Petersburg, Fla.

Goodell said a lifetime ban remained a possibility.

The Cowboys acquired Roy Williams from the Detroit Lions in the NFL’s biggest trade before the deadline, giving Dallas a proven wide receiver opposite Terrell Owens.

The Lions traded their unhappy 2004 first-round pick and one-time Pro Bowl player for three draft picks, from the first, third and sixth round in 2009. Detroit also gave the Cowboys a seventh-rounder next year.

“I’m more happy to be a Dallas Cowboy than when I got my first bike,” said Williams, an Odessa native who starred at the University of Texas.

Running back Shaun Alexander, a former league MVP, signed a one-year deal with the Washington Redskins.

Alexander, unemployed since being cut by the Seattle Seahawks in April, will back up NFL leading rusher Clinton Portis. Portis’ usual backup, Ladell Betts, sprained his knee Sunday in a loss to the St. Louis Rams and is expected to be sidelined two to four weeks.

Kitna suffered a back injury in a loss to Chicago two weeks ago and did not play last week against Minnesota. Dan Orlovsky played in Kitna’s place against the Vikings and is likely to make his second career start at Houston on Sunday.

Cowboys punter Mat McBriar was placed on injured reserve, ending his season two days after sustaining a broken foot on the last play of an overtime loss at Arizona.

A report looking at adding regular-season games and cutting the number of exhibitions was reviewed at the NFL owners meetings, but Goodell said no action was taken and that he doesn’t expect any change in the schedule next season. The matter will be addressed again today.

Kansas City Chiefs running back Larry Johnson was charged with pushing a woman at a nightclub in February, the third time he has been charged with assaulting a woman.

He is to appear in court Dec. 3 and could face a maximum jail term of six months and a $500 fine.

Otto Warmbier was arrested in January 2016 at the end of a brief tourist visit to North Korea. He had been medically evacuated and was being treated at the University of Cincinnati Medical Center when he died at age 22.